17.NOTE: This valve is set for a open center tractor hydraulic system. If tractor has a closed center system a closed center plug must be installed. Remove the open center plug in valve. Install the closed center plug furnished with the valve (Refer to Fig. 6).
18.Tighten all fittings and connections and install proper fitting to the supply and return lines at the rear of the tractor and connect to the tractor.
19.Adjust the cables so the control handle operates as follows:
z When properly adjusted, control handle will spring back to neutral position whenever valve spool is moved into the working position.
z When properly adjusted, control handle will be able to pushed forward, positioning the valve spool into the float detent position. Handle must be manually pulled rearward to disengage float position.
20.When valve circuit is properly connected, control handle should operate loader as follows:
z Pull handle back to raise loader.
z Push handle forward to lower loader.
z Push handle full forward to activate float detent position. z Move handle to the right to dump attachment.
z Move handle to the left to roll back the attachment.
NOTE: Cotaminant’s in hydraulic oil can cause valve spools to stick. BE ALERT when operating loader and follow your tractors operators manual oil maintenance schedule.
Fig. 6
NOTES:
1.WHEN ATTACHING A LOADER VALVE TO THE REAR REMOTES OF THE TRACTOR, A POWER BEYOND IS NOT REQUIRED. A POWER BEYOND KIT MUST BE USED WHEN ATTACHING A LOADER VALVE TO A HYDRAULIC SOURCE OTHER THAN THE REAR REMOTES OF A TRACTOR HAVING AN OPEN CENTER HYDRAULIC SYSTEM.
2.A POWER BEYOND KIT IS NOT REQUIRED ON TRACTORS WITH A CLOSED CENTER HYDRAULIC SYSTEM. THE LOADER VALVE MAY BE ATTACHED TO THE TRACTOR AT THE REAR REMOTES OR, AT ANOTHER HYDRAULIC SOURCE RECOMMENDED BY THE TRACTOR MANUFACTURER.
3.IF POWER BEYOND SYSTEM IS USED, REFER TO BASIC POWER BEYOND PLUMBING INSTRUCTIONS FURNISHED WITH POWER BEYOND KIT.
4.IF THE TRACTOR HAS A PRESSURE FLOW COM- PENSATED SYSTEM (PFC) - THE LOADER VALVE MUST BE CONNECTED TO THE TRACTOR REMOTES.
OPEN CENTER PLUG
REMOVE FOR TRACTORS WITH CLOSED CENTER SYSTEMS AND REPLACE WITH CLOSED CENTER PLUG ASSEMBLY.
CLOSED CENTER PLUG
REPLACE THE OPEN CENTER PLUG WITH THIS ASSEMBLY FOR TRACTORS WITH CLOSED CENTER SYSTEMS.
Page 6
